12 mg vial + 5 mL bacteriostatic water: units chart
A 12 mg vial mixed with 5 mL of bacteriostatic water holds 2,400 mcg per mL. This is a middle-strength mix: each unit holds 24 mcg, so most doses in the table land between 2 and 100 units on a 1 mL syringe.
Units to draw
10.4units
Draw 10.4 units on a U-100 syringe, just above the 10-unit mark.
- Dose
- 250 mcg (0.25 mg)
- Volume
- 0.104 mL
- Concentration
- 2,400 mcg/mL (2.4 mg/mL)
- Per unit
- 24 mcg (0.024 mg)
- Full doses in vial
- 48
Show the math
- Convert the vial amount to mcgmg × 1,000 = mcg12 mg × 1,000 = 12,000 mcg
- Convert the dose to mcgmg × 1,000 = mcg0.25 mg × 1,000 = 250 mcg
- Concentrationvial (mcg) ÷ water (mL) = mcg per mL12,000 mcg ÷ 5 mL = 2,400 mcg/mL (2.4 mg/mL)
- Volume to drawdose (mcg) ÷ concentration (mcg/mL) = mL250 mcg ÷ 2,400 mcg/mL = 0.1042 mL
- Units to drawmL × units per mL = units0.1042 mL × 100 units/mL = 10.4 units
- Amount in each unitmcg per mL ÷ units per mL = mcg per unit2,400 mcg/mL ÷ 100 units/mL = 24 mcg per unit (0.024 mg)
- Doses in the vialvial (mcg) ÷ dose (mcg), rounded down12,000 mcg ÷ 250 mcg = 48 full doses
12 mg peptide with 5 mL bac water: units chart
Units to draw on a 1 mL U-100 syringe for common doses, calculated by this site. With this mix, the chart doses from 50 mcg to 2,000 mcg are easy to read and fit one 1 mL syringe.
| Dose | Units (U-100) | Volume (mL) |
|---|---|---|
| 50 mcg | 2.1 | 0.0208 |
| 100 mcg | 4.2 | 0.0417 |
| 150 mcg | 6.3 | 0.0625 |
| 200 mcg | 8.3 | 0.0833 |
| 250 mcg | 10.4 | 0.1042 |
| 300 mcg | 12.5 | 0.125 |
| 400 mcg | 16.7 | 0.1667 |
| 500 mcg | 20.8 | 0.2083 |
| 600 mcg | 25 | 0.25 |
| 750 mcg | 31.3 | 0.3125 |
| 1,000 mcg1 mg | 41.7 | 0.4167 |
| 1,250 mcg1.25 mg | 52.1 | 0.5208 |
| 1,500 mcg1.5 mg | 62.5 | 0.625 |
| 2,000 mcg2 mg | 83.3 | 0.8333 |
Key numbers for this mix
- Peptide in the vial
- 12,000 mcg
- Concentration
- 2,400 mcg/mL
- Each unit on a U-100 syringe
- 24 mcg
- Each unit on a U-40 syringe
- 60 mcg
- Smallest easy-to-measure dose (2 units)
- 48 mcg
- Most that fits in a 1 mL syringe
- 2,400 mcg
Worked example: 250 mcg
- Convert the vial amount to mcg: 12 mg × 1,000 = 12,000 mcg
- Concentration: 12,000 mcg ÷ 5 mL = 2,400 mcg/mL (2.4 mg/mL)
- Volume to draw: 250 mcg ÷ 2,400 mcg/mL = 0.1042 mL
- Units to draw: 0.1042 mL × 100 units/mL = 10.4 units
- Amount in each unit: 2,400 mcg/mL ÷ 100 units/mL = 24 mcg per unit (0.024 mg)
- Doses in the vial: 12,000 mcg ÷ 250 mcg = 48 full doses
Draw 10.4 units on a U-100 syringe, just above the 10-unit mark. The same 250 mcg dose is 6.3 units with 3 mL of water, compared with 10.4 units with 5 mL.
Frequently asked questions
What is the concentration of a 12 mg vial with 5 mL of water?
A 12 mg vial mixed with 5 mL of water holds 2,400 mcg per mL. Each unit on a U-100 syringe holds 24 mcg.
How many units is 250 mcg with a 12 mg vial and 5 mL of water?
It is 10.4 units on a U-100 syringe, which is 0.1042 mL of the mixed liquid.
What is the smallest dose you can measure well with a 12 mg vial and 5 mL of water?
About 48 mcg, which fills 2 units on a U-100 syringe. Smaller amounts are hard to read; a vial mixed with more water spreads them over more units.
What is the largest dose that fits a 1 mL syringe with a 12 mg vial and 5 mL of water?
2,400 mcg, which fills all 100 units of a 1 mL U-100 syringe. Larger doses need more than one draw or a stronger mix.
How many doses does a 12 mg vial with 5 mL of water give?
Divide 12,000 mcg by your dose and round down: 48 full doses of 250 mcg, or 40 of 300 mcg.
Nearby vial and water combinations
See all reconstitution charts, or use the peptide calculator for any other vial, water or dose. For the reasoning behind these numbers, read Peptide Reconstitution Formula, Explained Step by Step.